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Compound Overview
(2-pyridyldithio)-PEG1-hydrazine (CAS 111625-28-6) is a research-grade small molecule supplied by TargetMol.
Physical Properties
| CAS Number | 111625-28-6 |
|---|---|
| Molecular Formula | C7H9NOS2 |
| Molecular Weight | 187.28 g/mol |
| SMILES | S(SCCO)C1=CC=CC=N1 |
| Form | Solid |
| Shipping | Room Temperature (RT) |
Biological Activity
(2-Pyridyldithio)-PEG1-hydrazine is a one-unit cleavable polyethylene glycol (PEG) linker specifically designed for the synthesis of antibody-drug conjugates (ADCs). This linker offers the advantage of controlled release of the drug payload from the ADC construct. It is utilized in the conjugation process between the antibody and the cytotoxic drug, enabling the targeted delivery of the drug to cancer cells. The (2-pyridyldithio) group of this linker provides stability during circulation in the bloodstream, while the hydrazine moiety allows for efficient drug release at the tumor site. Overall, the (2-pyridyldithio)-PEG1-hydrazine linker serves as a valuable tool in the development of targeted chemotherapeutic agents for cancer treatment.
Target(s): Others, ADC Linker
Signaling pathway(s): Antibody-drug Conjugate/ADC Related, Others
Safety & Regulatory
For Research Use Only (RUO). Not for therapeutic, diagnostic, or clinical use. Wear appropriate PPE and consult the Safety Data Sheet (SDS) prior to handling.
If you are using DMSO for preparation,sterilization is not recommended, as DMSO itself possesses strong sterilizing properties. The prepared solution is sterile. For further assurance, it can be left overnight at 4°C. The safest method is to filter through a specialized organic filter membrane. If water is used for preparation,sterilization can be achieved by filtering through a 0.22 μm filter membrane.
For small packages(1 mg, 5 mg, 10 mg, etc.）, it is not recommended to weigh them again which may lead to compound loss and inaccurate measurement. Our products are imported in their original packaging and accurately weighed, so you can directly dissolve the compound in the appropriate solvent upon receipt. For large packages, you can weigh and prepare stock solutions. It is recommended to start with at least 10 mg to reduce error. If conditions permit, you can first prepare a high-concentration stock solution and then aliquot it for use
Need this compound in a format that drops straight into your assay? We can tailor formulation, chemistry, and documentation so your results stay consistent across runs and re-orders.
- Format options: solid or pre-dissolved solution (choose solvent), target concentration, aliquots, light/moisture-protected packaging
- Chemistry options: free base/acid vs salt forms, hydrate/solvate preference, stereoisomer control (single enantiomer or racemate), close analogs
- Add-on labels & handles: D/¹³C/¹⁵N isotopes (LC-MS/internal standards), azide/alkyne or other functional handles for conjugation
- QC & documentation: standard COA or enhanced analytical pack (HPLC/LC-MS/NMR), chiral purity, residual solvents, water content (KF), method-specific specs
- Scale & continuity: mg to gram scale, bulk pricing, lot reservation, repeat-order continuity
To quote quickly, tell us: compound name + CAS/structure (SMILES or mol file), intended assay context, solvent preference, salt/stereochemistry requirements, purity/QC level, and the amount (mg–g).
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